/// <summary>
/// 转义指定位置的名称。
/// </summary>
/// <param name="name">名称。</param>
/// <param name="point">名称的位置。</param>
/// <returns>转义后的名称。</returns>
public virtual string EscapeName(string name, NamePoint point)
{
if (string.IsNullOrWhiteSpace(name))
{
throw new ArgumentNullException(nameof(name));
}
switch (point)
{
case NamePoint.Field:
case NamePoint.Table:
if (name[0] == '[')
{
return(name);
}
return(string.Concat("[", name, "]"));
case NamePoint.Value:
case NamePoint.Parameter:
if (name[0] == '@')
{
return(name);
}
return(string.Concat("@", name));
}
return(name);
}
/// <summary>
/// 转义指定位置的名称。
/// </summary>
/// <param name="name">名称。</param>
/// <param name="point">名称的位置。</param>
/// <returns>转义后的名称。</returns>
public virtual string EscapeName(string name, NamePoint point)
{
if(string.IsNullOrWhiteSpace(name)) throw new ArgumentNullException(nameof(name));
switch(point)
{
case NamePoint.Field:
case NamePoint.Table:
if(name[0] == '[') return name;
return string.Concat("[", name, "]");
case NamePoint.Value:
case NamePoint.Parameter:
if(name[0] == '@') return name;
return string.Concat("@", name);
}
return name;
}
public static void Start()
{
var p1 = new NamePoint("a", 0, 0);
Console.WriteLine($"{nameof(p1)}: {p1}");
var p2 = p1 with {
Name = "B", X = 5
};
Console.WriteLine($"{nameof(p2)}: {p2}");
var p3 = p1 with
{
Name = "C",
Y = 4
};
Console.WriteLine($"{nameof(p3)}: {p3}");
Console.WriteLine($"{nameof(p1)}: {p1}");
}
}
}
